GB455189A - Improvements in or relating to electric signalling systems - Google Patents

Improvements in or relating to electric signalling systems

Info

Publication number
GB455189A
GB455189A GB3640/36A GB364036A GB455189A GB 455189 A GB455189 A GB 455189A GB 3640/36 A GB3640/36 A GB 3640/36A GB 364036 A GB364036 A GB 364036A GB 455189 A GB455189 A GB 455189A
Authority
GB
United Kingdom
Prior art keywords
amplitude
signals
pass
feb
relating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3640/36A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Publication of GB455189A publication Critical patent/GB455189A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F15/00—Compounds of thorium
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
GB3640/36A 1935-02-27 1936-02-06 Improvements in or relating to electric signalling systems Expired GB455189A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE455189X 1935-02-27

Publications (1)

Publication Number Publication Date
GB455189A true GB455189A (en) 1936-10-15

Family

ID=6539016

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3640/36A Expired GB455189A (en) 1935-02-27 1936-02-06 Improvements in or relating to electric signalling systems

Country Status (2)

Country Link
FR (1) FR455189A (fr)
GB (1) GB455189A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1260543B (de) * 1963-09-24 1968-02-08 Siemens Ag Einrichtung zur Begrenzung der Pfeifleistung bei Fernsprechverbindungen
US4172215A (en) * 1976-09-27 1979-10-23 Hitachi, Ltd. Transformer coupling circuit providing for cancellation of D.C. fluxes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10118259C1 (de) * 2001-04-11 2002-12-05 Geesthacht Gkss Forschung Verfahren zur Anreicherung von Radium aus bariumsulfathaltigen Mineralstoffgemischen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1260543B (de) * 1963-09-24 1968-02-08 Siemens Ag Einrichtung zur Begrenzung der Pfeifleistung bei Fernsprechverbindungen
US4172215A (en) * 1976-09-27 1979-10-23 Hitachi, Ltd. Transformer coupling circuit providing for cancellation of D.C. fluxes

Also Published As

Publication number Publication date
FR455189A (fr) 1913-07-24

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